Stowe



F. E. STOWE.

VERTICALLY SLIDING 0R SWINGING SASH WINDOW.

APPLICATION FILED MAY 3I, 1917.

' Patented June 3, 1919.

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Application filed m 31-, 1917. ser arm. 171,869.

To all wkom it maytonoem: Be it known that I Feels-01s Ennns'r S'rowE', subject 015 the King-ot- Great Britain and Ireland, residing at 26- Hunter street,

Sydney, New South Wales, Australia, have invented new and useful Improvements in Vertically Sliding or Swinging Sash-Windo -ws, ofwhich the followingis.- a specification. q 7

" Th1s invention relates to windowsof the type in-which the sash (or sashes )slides-and swings in a 'vertical'direction, so that as the sash is opened, its upper fend slides downward in vertical. guides in the frame while its lower" end swings outward from the 1 frame and upward; and by continuing the opening movement, reversal of the normal position of the sash in the fraine'i's effected to facilitate cleaning-and repair or to utilize the'sash as a reflector to improve the lighting of the apartment-to which it is fittedfl -The two frame styles are formed with lateral slipper guides. The twotop corners 30 from the'slipper guides; the-lowerends ofi lock in the frame and cannot be slid and of the sash are pivota-l ly fixed toslippers. The-weight of the sash: is supported its opening; and closing movements are controlled by suspender links; pendent from fixed pivots located at either side of the irame about the level of the sash top when the sash is closed, and substantially; outwardthese links are pivotally attached to the sash stiles aboutmidway of the length'of'the sash.

If the'fixed pivots-be located too near the sup er guides, the sash tends to bind and swungfreely, so thata, considerable efliort is required to move it, particularly when it is in closed or nearly closed position and in that case the suspenders and their pivots andthe slipper pivots are liable to be broken unlessmade abnormally "strong. 7

Itis for these reasons essential; that the fixed pivots from-which the suspenderlinks 5 depend shall be located substantially outwardfrom the plane of the slipper guides in the frame stiles. A light form of sus-- pender is thenfus'able with safetyand tree movementof the sash is insured, For win dows of any normal size such as are fitted in domestic buildings, these pivots are set out from four to six inchesfrom the center lines of the. slipper guides. For very short sashesfor instance fanlights or transoms aset' of half thatamount suffices; while for very large windows a proportionately I neq fia i e of sttaraeas ratent u ame, 191a greater setis necessary to. insure free workf ing ot, the sash. The placing of'the points o=suspension ofthe-sashes substantially outward; from the outer plane of the sash faee is essential for the adjustment ofthe sash to insure a neatclosing and opening fit v in i the frame. s

The links are. swung inward a little beyond the vertical when the sash is near the closedposition. The outward positioning of the top pivots suspends the sash in aslight'ly open position and-operates to brakethe 010 ing movement of the opening movement.

It is furthermore very necessary that the suspenders shall be adjustable for a length in Sim; otherwise their originalfittingas also their readjustment after. wear are tedious and costly'operations, and neat working of the sash in't he frame cannot be insash and to assist its sured'. By threading the ends of the susrender rods right-hand and left-hand a respectively and tapping the terminal; pivot eyes to correspond, an exact adjustment is attainable at once by rotating the suspend'er rods without necessitating any disturbance of the overhead Suspender pivot; or thefsash pivot lugs. Screwed end stoc' suspender rods ofextreme length be supplied, so

that the excess length may out: to'waste to adapt them arwmae ofany. size smaller than the maximum for which the corresponding pivot brackets and pivot lugs are appropriate. Adjustment for length of the Suspender rods may also bearranged by using in each case two rods connected'by a right-and-left handsocket. 1 i

When two or more sashes in ve'rti'cal arrangement are carried in one frame, the slippers to which the top corners of said sashes are pivotally secured j are connected together in practice one long slipper serving all the sashs is fittedin either stile guide so that, thesashes movein unison In the acpompanying drawing, Figure 1 is a vertical section'through a pair of" sashes arrangedin vertlcal order in aframe showing, in full lines, both sashes inv the closed position, and in dotted lines both sashes in inverted and open positions;

Fig. 2 .is a fragmental elevational view showing the frame stile groove and'a'long slipper therein adapted to. control two sashes 1 when such sashes are arranged as in F 1; Fig. 3 is a fragmental horizontal, seption near the head ofthe frame, showing the pivotal mounting of the top corner of a .sash in the slipper, and showing also the I butt end'of one of the brackets which carry the top pivots for the sash suspenders;

Fig. 4 is a horizontal section showing a sash stile with suspender lug attached thereto, and showing also the frame, the guide groove therein, and-a slipper in said groove; Fig. 5 is a perspective view of one top corner of the sash, showing a shoe attached thereto which is engaged by a pivot pin on the slipper to maintain the movement of the upper end of the sash in a vertical plane while permitting the lower; part of the sash to be swung outwardly and upwardly, and Fig. 6 is a fragment elevational view showing portion of the slipper and the sash top-corner pivot thereon. V

The frame comprises asill, 10, rabbeted according'to Iany usual section, a head or lintel 11, and two vertical solid stiles 12. Thelintel 11 and thestiles 12 are run'from solid timber, but may be built up. The'inner portion 13 forms a rabbet stop. Within the rabbet sinking 1 1. a slipper guide 15 is formed by plowing a groove. This groove is protected by the throated check portion 16 of the rabbet, the throating being used according to the ordinary practice to check entrance of weather between the sash and the frame. 17 are the sash stiles. At the top corners these stiles are fitted with shoes 18. These shoes are interchangeable for right and left hand and so are formed with two pivot holes 19; the upper one of these holes carries the pivot 20 which is fixed on the slipper 21. The slippers 21 are free run ningfits for the slipper grooves 15 and are formed of hard wood or metal. About midway of the length of each. stile 17 a pivot lug 22 is mounted by screws as shown, or

otherwise. This pivot lug carries the pivot 23 of the eye 24, which is screwed on the lower end of the suspension rods 25. The upper ends of the suspension rods 25 are screwed into eyes 26,. the pivots 27 of which are mounted on brackets 28 which are screwed to the reveal portion 29 of the frame stiles 13 or are directly mounted on said reveal if of sufl'icient depth, or otherwise are mounted on the wall reveal.- In practice the brackets 28 are made interchangeable for side, so that they may be used left-hand or right-hand as required. It is immaterial how the pivots 27 V are supported so long as they are fixed at points about level with the top rail of the sash when the sash is closed, and are located outward from the. sash slipper guide'a distance proportioned to the length of the sash, suflicient to eliminate risk of j amming of the sash in the frame which would occur if those pivots were located too near the slipper groove. For a sash up to four feet in totallength an outward set of the pivot points 27 from the center lines of the slippers 21 of about five to six inches is sufiicient for all practical purposes. In the case of short sashes, closer mounting of the pivot points 27 ispermissible, while for sashes of great size, the fixed pivots 27 should be located six inches or more outward-from the slipper center line. The screw threads" on the ends of the suspension rods 25 are respectively right-and-left hand to facilitate exact adjustment in situ, so as to insure free action of the mounting and neat fitting of the sash in the frame. When two or more sashes are arranged in vertical order as shown in Fig. l, a check bar 30 may be used to form an abutment for the bottom rail 31 of the upper sash and the toprail 32' of the lower sash, but this provision is unnecessary. It is desirable however that a weather-joint be formed, as-for instance in the manner shown in Fig. 1, where a lip onv the lower rail ofthe upper sash sets over a chamfer on the top rail of the lower sash, and a packing strip 33 is inserted in a clearance space between those rails. When the sashes are thus arranged in vertical order, single slippers of ample length, such as 34, are provided, having each two pivots 35 and 36 for the upper and lower sashes respectively, 7

these pivots corresponding with the Pivots 20 previously described. I

It will be noted that the suspension point 23 of, each sash falls inside the vertical line of the pivots 27 when the sash is closed. When the sash is released, its downward tendency is therefore (by reason of its weight) to swing outward so that the opening movement is facilitated. Owing to the points 23 being in the vicinity of the center of gravity of the sash, and the points 27 being substantially outward of the slipper plane'in which the top rail of, the sash always moves, the sash will hold itself in any angular position to which it is moved, as for instance the angular posit-ion shown by the dotted lines 37 Fig.1. And it may be completely inverted to the position shown in the dotted lines 38 in Fig. 1, thereby exposing its outer face to the interior of the apartment to facilitate repair and cleaning. In swinging closed, the inward movement of the suspender links 25 past the vertical 7 position tends to brake the inward movement of the sash and bring it to rest easily; 1 The invention is not concerned with any particular form of locking mechanism, but it will be evident that a latch may be fitted ist either or both slippers in their.

guldes.

Under special circumstances a reverse arrangement of the" sliding and swinging parts may be adopted, that, is to say, the pivots 27 are then located near'the bottom end of by Fig; 1 of the 'drawings 'when it viewed What I claim @as my invention 1. YA vertically sliding and swinging sas severally pivotally connected at the corners of one end thereof to a pair of slippers adapted to run in vertical guides in the frame stiles, land at. either slde of each said sashes a PalIflOffilVOt end swing arms pivoted re- 1 7 spectively tothe stiles of each sash and to d desire to secure by Letters Patent is: f 1

window comprising a plurality of {sashes fixed pivotspositioned about level with the slippers end of said sash when closed and located substantially outward from the slipper plane. U

'2; A vertically sliding and swinging sash window comprising a plurality of sashes sev Verally pivotally connected at their upper cor'- here to a pair of slippers adapted to run in vertical grooves in the frame stiles, and each independently suspended centrally vat either side by a pair of pivot-end links which re- 7 7 'spectively depend from fixed pivots positioned about the sashtop levels and sub'-' stantially outward therefrom. In testimony whereof I have signed my name tothis specification.-

FRANCIS ERNEST STOWE;

I Witnesses:

W. I. YSTINSON, I

J. HUMPHRE-YSQ Copies 01' th is patent'may'lie obtained for me cents each, by addressing the Commissioner of Patents,

Y Washington, I). 0. v 

